Parquet, byte by byte · Build a Parquet reader while you read about one

Part IV: Writing and querying

What makes a file good to read, and what reads it?

ch11 turns the reader’s measurements back on the writer: which settings make a file cheap to read. ch12 describes what reads it: a query engine, what it asks of a file, and what each kind of query costs.

By Chris Snow, in collaboration with Claude (Anthropic) · Prose and figures: CC BY-NC 4.0 · Code: Apache 2.0

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